Bottle cap closure



Jan. 1, 1957 F. J. LORETITSCH 2,776,065

BOTTLE CAP CLOSURE Filed Mrch 10, 1955 .v I BY 1 1 ATTORNEYS United States Patent BOTTLE CAP CLOSURE Ferdinand J. Loretitsch, Brooklyn, N. Y. Application March 10, 1955, Serial No. 493,326

1 Claim. (Cl. 215-38) This invention rel-ates to caps or closures used in capping bottle goods, the primary object of the invention being to provide a cap which may be readily removed with the fingers, eliminating the necessity of using tools such as the conventional cap openers for opening bottles closed with caps constructed in accordance with the present invention, due consideration having been given to the cap construction to insure a leakproof cap in capping bottles containing charged liquids.

An important object of the invention is to provide a bottle cap which is useless as a capping means after the cap has been removed from a bottle, to the end that the cap must be discarded and any possibility of transmitting germs to the mouth of the bottle by replacing the cap after opening the bottle will be avoided, with the resultant promotion of sanitation by the use of the cap forming the subject matter of the present invention.

Still another object of the invention is to provide a cap or closure of this character including a plurality of tabs, which tabs have their free ends curved to lit within an annular groove formed in a bottle neck, so that the tabs may be readily withdrawn from the groove by the fingers of a person opening the bottle.

Other and further objects and advantages of the invention will be hereinafter described and the novel features thereof defined in the appended claim.

Referring to the drawing:

Fig. 1 is an elevational view partly in section, illustrating a cap, constructed in accordance with the invention as mounted on a bottle neck closing the mouth thereof.

Fig. 2 is a plan View of the cap.

Fig. 3 is a view of the cap prior to the bending of the tabs over a bottle neck to close the mouth of the bottle.

Fig. 4 is an enlarged elevational view illustrating the annular grooves formed in the neck of a bottle to accommodate the cap forming the subject matter of the present invention.

Referring to the drawing in detail, a bottle is indicated generally by the reference character 5, the bottle having the conventional neck 6 and mouth 7 over which the cap, forming the subject matter of the present invention, is fitted to close the mouth of the bottle.

The cap forming the essence of the present invention is constructed preferably of a disc of sheet metal material stamped from such metal in providing a disc-like cap 8 with portions thereof extended laterally at right angles with respect to the cap or central portion thereof, providing a series of tabs 9 formed in such a way that when the tabs are moved into parallel relation with respect to each other, a wide cap is formed with the tabs to closely fit around the surface of the bottle neck with which the tab is used. These tabs are formed with reinforcing ribs .10 extending longitudinally thereof through 2,776,065 Patented Jan. 1, 1957 the centers of the tabs, as better shown by Fig. 3 of the drawing, thereby bracing the tabs and permitting of ready bending of the tabs at points adjacent to the inner ends of the reinforcing ribs 10, providing a cap which is exceptionally strong and sealproof. The neck of the bottle with which the cap is used, is formed with an annular groove 11 which is substantially V-shaped in cross section, and an annular groove 12 which is curved in the arc of a circle, in cross section, to receive the curved ends 13 of the tabs, the ends of the tabs extending slightly beyond the outer surface of the neck of the bottle as shown by Fig. 1 of the drawing, so that the person operating the tabs to open the bottle, may grip the ends of the tabs to swing them to the position as shown in Fig. l in dotted lines. The tabs 9 are also provided with V- shaped bosses 14 disposed at points adjacent to the pivot ends thereof, which V-shaped bosses fit within the annular groove 11 and are retained within such groove by the pressure exerted on the cap in capping a bottle.

These bosses 14 are arranged on opposite sides of the reinforcing ribs 10, to insure a perfect seal between the tabs and the bottle.

A sealing disc 15 of a diameter to fit within the disc like cap 8, is used and is pressed tightly against the mouth of the bottle by the machine in capping the bottle with the cap forming the subject matter of the present invention, thereby to further insure a complete seal between the cap and bottle mouth.

From the foregoing it will be seen that due to the construction shown and described, I have provided a bottle cap which will securely seal the contents of a bottle, and may be readily opened by the fingers effecting outward movement of the tabs to disengage the bottle neck, thereby eliminating the necessity of providing an especially constructed tool for opening a bottle capped with a disc like cap a described in the present application.

While the specific details of one embodiment of this invention have been herein shown and described, the invention is not confined thereto as changes and alterations may be made without departing from the spirit and scope thereof as defined in the appended claim.

I claim:

In a bottle having a neck formed with a pair of spaced apart annular grooves, a bottle cap comprising a top wall, a relatively short cylindrical side wall extending downwardly from said top wall, a plurality of tabs depending from said side wall, each tab being formed with downwardly convergent side edges, a pair of inwardly pressed bosses carried by each tab adjacent the upper end thereof engageable in the upper one of said grooves, a lower boss carried by said tab at the apex thereof engageable in the lower one of said grooves, and a reinforcing rib carried by each tab and disposed longitudinally thereof.

References Cited in the file of this patent UNITED STATES PATENTS 662,812 Perry Nov. 27, 1900 829,341. Kirkegaard Aug. 21, 1906 1,134,427 Ullrich 1 Apr. 6, 1915 1,724,213 McDonnell Aug. 13, 1929 2,414,395 Salvo Jan. 14, @1947 FOREIGN PATENTS 409,742 Great Britain May 1, 1934 446,612 Great Britain May 4, 1936 831,810 Germany Feb. 18, 1952 

